Time-lock.



C. A. MILLER.

TIME LOCK.

APPLICATION FILED SEPT. I4, I9I5.

Llw?. PaIenIed De@.14,1915.

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raam cambia.

CHARLES A. MILLER, OF STAIVIFO-RD, CONNECTICUT, ASSIGNOR T0 THE YALE 8a TOWNE MANUFACTURING COMPANY, OF STAMFORID, CONNECTICUT.

TIME-LOCK.

Liemers'.

Application filed September 14, 1915.

To all whom t may concern.'

Be it known that I, CHARLES A. MILLER, a citizen of the United States, and a resident of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Time- Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in time movements, adapted particularly for use with time locks, and it consists in a main and a supplementary dial or other members both actuated by the same time movement, andeach carrying means for actuating an unlocking or releasing device.

It further consists in a main and supplemental dial or other members, both actuated by the same time movement but at different speeds, and each carrying means for actuating an unlocking or releasing device.

It further consists in means whereby the supplementary dial or equivalent member, may be connected with and disconnected from the time movement.

It further consists in the parts and combination of parts and in the details of construction as will be more fully explained and pointed out in the claims.

In the accompanying drawings, Figure l is a view in elevation of my improvement showing it applied to the time movement of a lock; Fig. 2 is a view in section on the line at' a2 of Fig. l; Fig. 3 is a bottom plan view of the main and supplemental dials in their assembled positions; Fig. 4t is a bottom plan of the supplementary dial, showing the pawls for connecting it with the ratchet wheel on the main arbor; Fig. 5 is a view of the ratchet wheel; Fig. 6 is a View of the disk for actuating the pawls on supplemental dial and Fig. 7 is the arm on the main dial for actuating the unlocking bar of the movement.

In the drawings I have illustrated, and in the specification will describe my improvement in connection with triple time lmovement of a lock, but I do not confine myself to such application nor to its use with time locks as it may be useful on watches, clocks or any time movement employed for actuating a part at a liXed time.

l represents two time movements which are Specification of Letters Patent.

Patented Dec. 1st, 1915.

Serial No. 50,642.

of the ordinary form and construction, and 2 a third movement to which my improvement is applied. Each of these time moveJ ments has a dial 3 carrying means for engaging and moving the unlocking bar 4 of the lock, the said bar being designed to coact with the bolt mechanism of a safe or vault door, for releasing the bolt mechanism at a predetermined time in the usual and wellknown manner.

The dials 3 of the time movements 1 each has a pin 5 for engaging the lugs 6 on the rear face of the unlocking bar 4.-, while the dial 3 of the time movement 2 carries an arm 7 to engage its lug on the bar 4:, the said pins and arm operating by their contact with said lugs 6, to move the bar -l longitudinally in a direction to release, or cause proper mechanism to release or retract, the bolts of the safe or vault, in the well-known manner. Y

My improvement consists in av supplemental dial 8 mounted on parts secured to the main winding arbor 9 of the time movement 2, and concentric with said arbor. Arbor 9 carries a fixed pinion 10, meshing with teeth 11 in the periphery of the main dial 3, whereby the latter will be positively rotated, and it also carries the ratchet wheel 12, the hub 13 of which has an angular bore to conform to the angular projecting end of the arbor, and is preferably secured to the latter by the screw 14. Secured to the rear face of the ratchet wheel 12 is the thin disk 15, which forms in effect a closure for the rear face of supplemental dial 8, which is loosely mounted on the hub 13 of the ratchet wheel 12, and is held thereon against displacement by the collar 16, also seated on said hub 13 and locked thereto by the screw 14, passing through the collar and hub and engaging a recess in the arbor.

Supplemental dial 8 overlaps the main dial 3 and is overlapped by the arm 7 of the main dial and is provided with a circular recess in its rear face, of a depth suiicient to receive and house the ratchet wheel 12, which is located within said recess concentric with the dial. Pivotally mounted within the said recess are the pawls 17, the free ends of which are normally pressed inwardly toward the ratchet wheel l2 by the springs 18. In the present instance I have shown three spring pressed pawls, but the number used is unimportant. 4The pawls &)

are located to engage the toothed edge of the ratchet Wheel 12, so that When the paivls are in engagement with the ratchet Wheel, the supplemental dial Will be positively rotated by the ratchet Wheel.

Located Within the recess in the dial 8, and seated on the disk 15, which as above stated forms a closure for the recess in the dial, is the ring disk 18a shown in plan in Fig. 6. This disk is open at the center to receive the ratchet Wheel 12, and is provided with a bent tongue 19 for each paivl. These tongues are bent outwardly, as shoivn in Figs. 2 and 4: and rest against the paivls so thatwhen the disk 18a is given a part rotation in one direction, the paivls Will be moved outwardly, or away from the toothed periphery of the ratchet Wheel, thus disconnecting the supplemental dial from said Wheel, and When turned in the other direction, releases the pawls and permits their c springs 18 to force themv into contact with the ratchet Wheel. The pavvl regulating disk 18aL is provided with a finger 2O which projects through a slot in the supplemental dial 8 (see Fig. 3) so as to be accessible. The supplemental dial 8 is provided on its periphery With teeth 21 which engage the toothed Wheel 22 loosely mounted on the stud 23 carrying the'main dial 3. The outer edge 24 of this Wheel 22 is roughened to permit it to be grasped and turned so as to adjust the supplemental dial.

The ordinary or main dials 8 of a time lock make one complete revolution in seventy two hours. The supplemental dial 8 is geared to make one complete revolution in twentyV four hours, or three times as fast as the main dials, hence it is evident that the unlocking pin 5a on the supplemental dial, which comes in contact with the lugs 6 oi the unlocking bar, will if on the same radius, move the unlocking bar three times as fast as the unlocking arm 7 or the pins 5 on the main dials. If therefore the supplementary dial be set for one hour, the unlocking pin will be moved away from the unlocking lug three times as fast as the unlocking pin of the main dial, when set for an hour, thus permitting the unlocking bar to move three times as far in the same time as it could if controlled by the unlocking pins on the main dials. This rapidity of movement permitsthe safe to be locked for a. period of one hour, which is not always practicable with a dial Which makes one revolution in seventy-tivo hours. Therefore, by means of the supplemental dial 8, the lock may be put in operation so as to go on and oii" guard at predetermined intervals during the day, or regular banking hours, independent of the regular dial 3. The supplemental dial 8 may be set so as to securely lock and to unlock the safe at intervals, the-period of locking to be one hour or more, as may be desired, and indicated by the graduations on the dial. It is very desirable in some sections of the country to thus guard against bandits, or holdup men, during the day-time; and this supplemental dial is a convenient and adequate means of getting timelock protection during banking hours. The supplemental dial is also a convenient means of correction in case of overwinding oi the main dials. With the ordinary time mechanism, if dials be overwound, the banker must either secure the aid of a skilled mechanic to correct the error,l or keep the safe or vault door open. If he closes it, it cannot be opened until the time mechanism operates.` lVith my improvement, if a mistake has been made in setting the regular dials, the supplemental dial may be set to unlock at any time within the succeeding twenty-i'our hours, thus enabling the banker to lock up, with the time lock set to unlock at a predetermined correct time, Without disturbing the incorrect winding of the main dials. In other words the supplementary dial, Whether moving at the same or different speed from the main dial, and which can be put either into or out of operative connection with the locking mechanism, may be used to meet certain conditions which cannot be accurately attained with the ordinary dials, vand to correct errors in a variety o'l different ways.

The application of my improvement to an ordinary time lock does not interfere in the least with the train or escapement mechanism, but is simply an addition thereto, and through proper clutch mechanism may be made to revolve at the same speed as the main winding arbor, or may be disconnected so as not to interfere with the action of the main dials.

I do not confine myself to the means shown `tor connecting and disconnecting the supplemental dial and main arbor or other operative part of the time mechanism, nor to other details shown but would consider myself at liberty to make such changes as may fairly fall Within the spirit of my invention.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. The combination of a time movement, a main rotating member, and a supplemental rotating member, both of said members actuated by said time movement, and an unlocking mechanism adapted to be actuated by either of said rotating members.

2. The combination of a time movement, a main rotating member and a supplemental rotating member actuated by said movement but at different speeds, and an unlocking mechanism adapted to be actuated by either of said rotating members.

CII

3. The combination of a time movement, a main rotating member having direct connection with said time movement, a supplemental rotating member having clutch connection with said time movement, and an unlocking` mechanism adapted to be actuated by either of said rotating members.

il. The combination ot' a time movement, a main rotating member having direct ccnnection with said movement, a supplemental rotating member having clutch connection with said movement, the said main and supplemental rotating members adapted to rotate at dilerent speeds, and an unlocking mechanism adapted to be actuated by either of said rotating members.

The combination of a time movement, a main dial having unlocking bar actuating means, a supplemental dial having unlocking bar actuating means both of said dials being rotated by the time movement, an unlocking bar and an unlocking mecl1anism on each dial located with relation to the unlocking bar so that the latter may be actuated by either.

6. The combination of a time movement having a Winding arbor, a main dial actuated by said movement, a supplemental dial loose on the Winding arbor of the movement, clutch mechanism for connecting it to and for disconnecting it from said arbor, means moving with said dials for actuating an unlocking mechanism and an unlocking mechanism adapted to be actuated by either of said actuating means.

T. The combination of a time movement, main and supplemental rotating dials actuated by said movement .but at different Speeds, a clutch mechanism for connecting and disconnecting the supplemental dial and a rotating part ot' the time movement, means iixed with relation to said dials for actuating unlocking mechanism, and unlocking mechanism so located With relation to the dials that it may be actuated by either.

In testimony whereof, I have signed this specification in the presence of tivo subscribing witnesses.

CHARLES A. MILLER.

lVitnesses ROLLIN C. lV. LEWIS, CHARLES A. BERRY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

